I caught a picture of some of the aggressive behaivor of these two fish.. I've tried moving things around, ect. to no avail.. it's not outright aggression.. but the lion keeps the grouper cornered almost all the time.. "shadows' him around the tank.. any suggestions?

I think they will get used to each other. It's just some posturing right now. Lions aren't known to be aggresive as much as they are hungry, he's probably trying to figure out if the grouper will go down easy or not

well, I feed every night, he eats every night, so does the snowflake eel. Neither have shown any hostility towards the other fish in the tank. There is even a tomato clown that is continually swimming around the Lion. He apparently feels quite safe.

I have been told not to feed daily, but frankly, if it keeps the peace, I will do it.
I mix my own food made from scallops, shrimp, fish, squid and garlic oil. He eats anywhere from 3-5 hunks of a little bigger than 1 inch pieces each evening. It has been my experience with both the Lion and the Eel that they will not assume a hunting posture unless I havent fed them.

Incidently, he is target fed so that I know he has eaten. He has added at least an inch, if not two, in length in the last couple of months.

I dont see a problem feed the lion everyday as long as you keep up with your weekly 10% water change. The reason Ive heard not to feed them everyday is because of the amount of waste they produce. Your water changes should keep that in check though.